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Random PC Reboots - Hardware Problem?


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#1 IIeMachineII

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Posted 16 November 2013 - 09:38 PM

Hey guys I have been struggling with this for about 4 months and it's so frustrating. It started a month and a half after buying the computer so the 1 month warranty ran out. What happened at first was the PC started rebooting completely randomly even if it was just sitting idle. It was running on Win8 so after I did some research I thought maybe it was the OS so I got rid of the lovely Windows 8 and downgraded to 7. That didn't work. It kept doing the reboots. About a month and a half ago I got fed up and sent the mobo in for RMA. It came back and the reboots continued. It restarted on start up (BIOS screen, Welcome screen, etc.) An idea came to me and I removed one stick of RAM which left only 4GB on the computer. Then it booted up completely. After 30 minutes or so it didn't reboot, it froze. The mouse and keyboard were useless and there were weird small blue lines flickering on the screen. I then had to force reboot. I tried both sticks of memory at a time to see if maybe only one of them was messed up. They both failed the manual test. I also ran Windows Memory Diagnostic but it had no errors. Keep in mind this was the Win7 tool. Today I took the computer to the person who sold it to me, who is also a technician. He took my ram, put it in his windows 8  PC and ran memtest on it. It showed some errors but he said it wasn't crucial. He also said he thought it was the mobo and he explained how Biostar may not have sent me a "new" one and instead a refurbished motherboard. Anyway, I came back home and, of course, the reboots continued. Then, as I'm writing this post, all that keeps happening is the computer keeps freezing and the screen turns random colors every time it happens. One time it will be pink with white horizontal lines, another blue with black lines. It's weird. I don't know what is wrong and I don't want to act (RMA, technician fix, etc.) until I know the exact issue. I hope we can get to a conclusion in this thread. Thanks for sticking through my whole story :)

 

http://speccy.piriform.com/results/AwZyvZJnVF7DTTiozhQ2x0c

Specs below:

AMD FX-6300 Six-Core 3.5ghz CPU
ATI Radeon HD 4250 (Integrated GPU)
8GB Cendyne RAM
Biostar A880GZ Motherboard
500w PSU


Edited by hamluis, 17 November 2013 - 12:36 PM.
Moved from Win 7 to Internal Hardware - Hamluis.


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#2 cryptodan

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Posted 16 November 2013 - 09:42 PM

Please perform the following, so that we can get the exact specs of your computer. This will better assist us in helping you more.

Publish a Snapshot using Speccy

The below is for those who cannot get online

Please take caution when attaching a text file to your post if you cannot copy/paste the link to your post, you will need to edit it to make sure that your Windows Key is not present.

Please download MiniToolBox, and save it to your desktop and run it, and checkmark the following checkboxes:
  • Flush DNS
  • Report IE Proxy Settings
  • Reset IE Proxy Settings
  • Report FF Proxy Settings
  • Reset FF Proxy Settings
  • List content of Hosts
  • List IP configuration
  • List Winsock Entries
  • List last 10 Event Viewer log
  • List Installed Programs
  • List Users, Partitions and Memory size.
Click Go and post the result (Result.txt). A copy of Result.txt will be saved in the same directory the tool is run.
Note: When using "Reset FF Proxy Settings" option Firefox should be closed.

#3 IIeMachineII

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Posted 16 November 2013 - 10:11 PM

http://speccy.piriform.com/results/AwZyvZJnVF7DTTiozhQ2x0c



#4 cryptodan

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Posted 16 November 2013 - 10:35 PM


How to Test your RAM



Guide Overview

The purpose of this guide is to teach you how to check whether your system's RAM (Ramdom Access Memory) is working properly. Bad RAM can lead to a whole host of problems, often which do not appear to have a single cause -- appearing as systemwide glitches, blue screens, and other system trouble. MemTest86+ provides a very good detection mechanism for failed RAM, and is about as good a test you get short of actually replacing the module itself.

Tools Needed
Please perform these steps from a separate, working, machine.Perform these steps on the problem machine.
  • Put your CD in the drive and configure your machine to boot to the CD. This is different on all machines, but it's usually by pressing F12 or F10 as your system boots, and selecting either "CDROM" or your cdrom drive. If you are unable to force a CDRom boot, reply with the make and model of your machine and I should be able to get you exact instructions.
  • If you've done it correctly, MemTest86+ will start to run automaticly, as shown below:
    memtestStart.png
  • If you want to be reasonably your RAM is OK, then allow MemTest to run until you see this message:
    memtestFinished.png

    On the other hand, if you want to be completely sure your RAM is OK, allow MemTest to run overnight. Memtest will run forever until power is pulled on the machine.
  • Check the MemTest screen for any reported errors. Errors will appear as RED warnings at the bottom of the screen, similar to the following screenshot:
    memtestFail.png
  • Hard-Reset the machine, removing the MemTest disk in the process.
If you didn't get an error screen, Congratulations! :)

Compliments of Billy O'Neal.

#5 cn de javis

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Posted 16 November 2013 - 10:53 PM

this may cause of your processor getting over heated.so better to clean your heat sink and reassemble your PC. don't forget to check your CPU temperature through the BIOS.if the problem not fixed,check the RPM rates of your CPU fan and if it is low,then make it higher rate.






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